module ActiveSupport::TaggedLogging
Wraps any standard Logger object to provide tagging capabilities.
logger = ActiveSupport::TaggedLogging.new(Logger.new(STDOUT)) logger.tagged('BCX') { logger.info 'Stuff' } # Logs "[BCX] Stuff" logger.tagged('BCX', "Jason") { logger.info 'Stuff' } # Logs "[BCX] [Jason] Stuff" logger.tagged('BCX') { logger.tagged('Jason') { logger.info 'Stuff' } } # Logs "[BCX] [Jason] Stuff"
This is used by the default Rails.logger as configured by Railties to make it easy to stamp log lines with subdomains, request ids, and anything else to aid debugging of multi-user production applications.
Public Class Methods
new(logger)
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# File lib/active_support/tagged_logging.rb, line 59 def self.new(logger) # Ensure we set a default formatter so we aren't extending nil! logger.formatter ||= ActiveSupport::Logger::SimpleFormatter.new logger.formatter.extend Formatter logger.extend(self) end
Public Instance Methods
flush()
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Calls superclass method
# File lib/active_support/tagged_logging.rb, line 72 def flush clear_tags! super if defined?(super) end
tagged(*tags) { |self| ... }
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# File lib/active_support/tagged_logging.rb, line 68 def tagged(*tags) formatter.tagged(*tags) { yield self } end